Return-Path: Received: from mtain-de03.r1000.mx.aol.com (mtain-de03.r1000.mx.aol.com [172.29.64.203]) by air-de08.mail.aol.com (v129.4) with ESMTP id MAILINDE082-5ebf4bf2ff46373; Tue, 18 May 2010 16:57:42 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-de03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1C479380000BD; Tue, 18 May 2010 16:57:41 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OETp9-0002JT-Fk for rs_out_1@blacksheep.org; Tue, 18 May 2010 21:55:35 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OETp9-0002JK-40 for rsgb_lf_group@blacksheep.org; Tue, 18 May 2010 21:55:35 +0100 Received: from smtp819.mail.ukl.yahoo.com ([217.12.12.248]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1OETp7-00074w-G0 for rsgb_lf_group@blacksheep.org; Tue, 18 May 2010 21:55:35 +0100 Received: (qmail 9426 invoked from network); 18 May 2010 20:55:27 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=DKIM-Signature:Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=d8eibHDoxwQ3poEuJXFW9P8RZDR89YiU2glIf89X82Nfl+r5PkuBAx/yfgDiMM+tL9TdIVUm0H+J+1fybBcmcPGDcQjSjOSFsNKjzdseZoXxHGkv28fOYu5V7m/U7ZAShYsg61pVWJA3MwRmi1fR2RBo8Q0WL6aQVHRSomA/HTg= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btopenworld.com; s=s1024; t=1274216127; bh=wRy1EzYmTxyZXhZHc7h7phBpz2YpC1MPtBrmgg1IUDo=; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=A0PCQ25W1CBbvDGtee9Ddk5NVh7bBEgtGcNZXCPs7bBkeP1Q0wwBpCy/uTIuBY4/jbSoaztfsKb5remXqqlN5sQGyhuzHlBYp3GrKMfWZIRhm4yhjV0d8ucjhED868ZXVMHyxr6x8DCc2B0ZVLW0/UpbqxGoHeIRphCJb0eZFuc= Received: from JimPC (james.moritz@86.180.205.31 with login) by smtp819.mail.ukl.yahoo.com with SMTP; 18 May 2010 20:55:27 +0000 GMT X-Yahoo-SMTP: Cxhli3eswBD1ozmtAojhjrja86kWx0Qm9tycD5QR1DKWrOLgjJcXkw-- X-YMail-OSG: HVjxLjEVM1kkVog8vI1rvIf6gYo4Mc1kT8CTw5mX71_TTy4liKy9lCMb8QM5c.kqrnQNbhb0nGjlUCTPL2CPNAq0UASsvVtCShm6FYQX34YUgIQyKZmMkBj6xYvpzwLxfRCuw7bPkOPaIx1CCxRhFDFVOtcJp0QA0Pf5nJckHNk7jlFzcGgSXkBeasymiRia25mWGXOSFWFEG3on6di6Kn0d5ugwGSRnU8dWwJwWs4Ylj7xBB8I7ZSUfsy6BJqCR X-Yahoo-Newman-Property: ymail-3 Message-ID: <46148C4AA5164D30B4E3186D6C534215@JimPC> From: "James Moritz" To: References: <002701caf394$44cbd980$0401a8c0@xphd97xgq27nyf> <4BEE8B1B.502@iup.uni-heidelberg.de> <4BEE92AD.7090909@iup.uni-heidelberg.de> <38A51B74B884D74083D7950AD0DD85E82A1BF2@File-Server-HST.hst.e-technik.tu-darmstadt.de> <38A51B74B884D74083D7950AD0DD85E82A1BF3@File-Server-HST.hst.e-technik.tu-darmstadt.de> <584F52DF3AAC487DBCD36E94942FDA22@JimPC> <4BF27269.2020603@iup.uni-heidelberg.de> In-Reply-To: <4BF27269.2020603@iup.uni-heidelberg.de> Date: Tue, 18 May 2010 21:55:28 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18197 DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,UNPARSEABLE_RELAY=0.001 Subject: LF: Re: DK7FCs 5th VLF experiment... Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m241.2 ; domain : btopenworld.com DKIM : fail x-aol-sid: 3039ac1d40cb4bf2ff456090 X-AOL-IP: 193.82.116.20 Dear Stefan, LF Group, > > Which vertical antenna do you mean? > > 73, Stefan/DK7FC > Well, on 15/05 you wrote: >If the wind is stable and i have enough time i will do first receiving >tests using the TX antenna! This >is to prepare the first VLF QSO above >100km ;-) I was just curious to know if you tried this, and if so, how loud the results were... Back in 2000, I did some tests on 136k and 73k from the 100m high Decca Navigator mast at Puckeridge. The receive SNR was actually very good, thanks to the quiet rural location, but it did need about 40dB of attenuation at the RX input. Cheers, Jim Moritz 73 de M0BMU